Can lid closure and method of joining a can lid closure to a...

Details Can lid closure and method of joining a can lid closure to a... Can lid closure and method of joining a can lid closure to a...

B - Operations, Transporting

21

D

B21D 51/38 (2006.01) B21D 51/32 (2006.01) B21D 51/44 (2006.01)

Patent

CA 2392994

A preferred embodiment of the disclosed can lid has a center panel (12) having a central axis (14) that is perpendicular to a diameter of the outer rim, or peripheral curl portion (38), of the can lid (10), an annular countersink (16) surrounding the center panel (12), an arcuate chuckwall (132) extending radially outward from the annular countersink ( 16), an arcuate step portion (34) extending radially outward from the arcuate chuckwall (132), a transitional portion (36) extending radially outward from the arcuate step portion (34), and a peripheral curl portion (38) extending outwardly from the transitional portion (36).

Un mode de réalisation préféré de l'invention concerne un couvercle de canette qui possède un panneau central dont l'axe central est perpendiculaire au diamètre du rebord extérieur, ou de la partie périphérique du bourrelet de ce couvercle de canette, une fraisure annulaire entourant ce panneau central, une cloison arquée se prolongeant radialement vers l'extérieur à partir de la fraisure annulaire, une partie décrochement arquée se prolongeant radialement vers l'extérieur à partir de cette cloison arquée, une partie intermédiaire se prolongeant radialement vers l'extérieur à partir de cette partie décrochement arquée, et une partie bourrelet périphérique se prolongeant radialement vers l'extérieur à partir de cette partie intermédiaire.

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